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Last seen: Apr 3, 2026
@murchison2003 Sounds like it might be setup with a fixed flow temp without weather compensation? Might be best to set up a new thread and post the ...
@colin thoughts on my COP? Total 2022 is from March 2022 to Jan 2023. Looking forward to seeing how figures compare to last year now that it seems to ...
@editor Vaillant software is flaky in my experience. There are times when it doesn't connect and a circular arrow icon just spins on the screen. I'm t...
Hi @colin any chance of a graph of your Jan usage please? I've reduced the curve to 0.35 setback 18 deg (running weekdays until 16.00 then 19.5 deg un...
@colin for external temperature I have two methods currently. The first is the Vaillant external temperature sensor via a custom Vaillant HACS integra...
@colin you do have a VMZ AI panel, any chance you could compare your settings to mine posted above? Consumption and average flow temp has come right...
@colin have you got any pictures of your installation you could share please? Do you have any room stats?
@heacol yes, worried that's the case. Need someone to take a look at it, but need remaining insulation issues and rad changes to be addressed first. N...
@colin thanks, do you have an intermediate heat exchanger (VMZ MWT 150) and buffer tank? I am also interested in your settings for your VMZ AI: Co...
@cathoderay This looks more like my usage profile. What's your setup/house size etc? DO you have heat exchanger and buffer tank?
@colin thanks, please can you send the same graphs for DHW consumption and yield?
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Latest Posts
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RE: How quickly would you want/expect heat recovery to take from setback?
@jamespa I was thinking primarily of raising the flow t...
By AndrewJ , 3 hours ago
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He's down for a bit of maintenance... I'll restore him ...
By Mars , 4 hours ago
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RE: Why don't people choose heat pumps?
So a bunch of things rather than generate a load of rep...
By EtchedPixels , 4 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
That is a good approach and an excellent result. For co...
By Judith , 8 hours ago
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RE: Our 10 year old Grant heat pump failed
@editor @mike-patrick A 10 year old grant heat pump ...
By JamesPa , 11 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
In principle I agree but for what? OP has drawn a sche...
By JamesPa , 13 hours ago
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RE: Say hello and introduce yourself
Good to see you here, @claytonbrowne, and welcome to th...
By Mars , 16 hours ago
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RE: Issues with Samsung heat pump – high running costs and house dropping to 11C overnight
It looks very much like a radiator balancing i...
By hml1827 , 1 day ago
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I have, @transparent, but chose to pose the question he...
By Majordennisbloodnok , 1 day ago
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RE: Should I change my cylinder when changing from a gas boiler to a heat pump.
@jamespa’s point about payback is a useful counterbalan...
By Mars , 1 day ago
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If it no longer works after forgetting its settings and...
By bobflux , 2 days ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 2 days ago
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